Fast Class Racing

[70Z]

[ QUOTE ]
70Z...you don't need a Deuce or a Supercar....hell we have seen rental cars make a pass !!

[/ QUOTE ]

Are you talking about the FAST Class or the SCR? SCR is an invitation thing I thought.

[Xplantdad]

AT SCR...you can race whatever you want to...just pay the entry fee and race. I might have to race the rental this year!

[Jim Ferron]

Does anyone have any first hand knowledge of what these guys do to Rat motors to get them to run low 10's high 11's? I can only guess...anybody know?

[L88 CORVETTE]

Jim
You asked how we make the Rats run?Well,More cubes to start with,most guys are over 500,mines 511.Then its roller cams,rewoked intakes,raised exh ports,extrude hone exh manifolds,reworked carb,mandrel exh system,hi compression,some over 15 to 1. Lots of dyno time and a pile of parts in the corner of my garage that was supposed to the "magic bullet" and didnt work!It's a full time job staying ahead of the Hemi's and Buick's!!!!

[Jim Ferron]

WOW! To anyone not familiar with FAST racing, Wayne Nelson is the F.A.S.T class record holder at 10:59-130 MPH!

I guess I couldn't get a better guy to answer my question! I'm honored!

I watched you guys at Musclepalooza II with great interest. If you are running 511 cubes that must mean you have 454 + .060 + 3/8'' stroker correct? [That's what I guessed] And if you are running gennie [074] L-88 style heads, doesn't the increased spring pressure create havoc with the exhaust stud bosses?

I am building either a 496 or 511 [NOT for FAST class]myself but with the use of vintage heads [14011077 Rect OC raised ext port 'C'] personally I worried about the ability of being able to fill up a 511 with juuust a flat tappet cam and I was worried about the reportedly bad castings holding up to the increased spring pressure [your opinion?]

One more question...with all the torque and no tire to speak of when, during the 1/4 mile pass can you actually go to WOT without worry of tire spin. I would think tire spin could happen even in high gear let alone second ...no? Do you think the Corvette chassis offers an advantage to traction that other Chevrolet cars don't?

BTW...Congrats on the record !

[retengw31]

<font color="red">Headers?</font>

He said the dirty word! Throw the blasphemous S.O.B. to the sharks!!!!!!!!

[Chevy454]

[ QUOTE ]
And if you are running gennie [074] L-88 style heads, doesn't the increased spring pressure create havoc with the exhaust stud bosses?

[/ QUOTE ]
Jim: Maybe try a Rev Kit...

[L88 CORVETTE]

Jim
The bore is larger,.125 over,and the stroke is shorter,4.25.My heads(074) have welded in reinforcment for the stud boss problem you speak of,the rev kits are too tall to fit under stock valve covers as far as I know. As far as traction goes,I have been lucky,almost no wheelspen off the line,about 10 or 15 feet in 2nd gear,none in 3rd!

[Chevy454]

Wayne: a Rev Kit sits in the lifter valley of your block...shouldn't effect valve cover fit at all.

[L88 CORVETTE]

Rob
Sorry,I was thinking of the stud girdle that goes under the valve cover!Oops!I thought Jim was referring to the head problems the 074's have with breaking off rocker stud boss' with hi valve spring pressure.Maybe your Rev kit does the same thing,only in a different way?